Worst case scenario: Two black rifles, one 223 and one 68 laying on a bench. A shooter picks up the 68 and slams a 223 mag in it, drops the bolt. What happens when he pulls the trigger? I assume when he does it the other way (68 in the 223) it will just jam.

Constructor

07-23-2010, 09:55

If one drop of the charge handle is enough to force the .350 case into a .308 neck it will fire, rupture the case and blow the mag apart at a minimum, it could blow the carrier and upper receiver apart. I know of someone that did just that except he dropped the charge handle 3 times to force the 5.56 case into the neck area of the 6.8. It blew the mag bottom off but did not break the bolt, carrier or receiver, it just scared the crap out of him. The same thing could happen with a 5.56 in a 7.62x39.